The advantages of flat welding flange:
1: In order to compact the sealing surface of the flat welded flange, only a small pressure is needed. As the required pressure drops, the size of the bolts and the number required are correspondingly reduced. After all, a plan is planned A flat welding flange product with relatively small volume and light weight.
2: The production of flat welded flanges can save data and reduce costs. When the raw material of the pipe is special and the price is high, the cost of welding the flange of the same raw material will be high, and the use of this flange can effectively save the cost of materials. Conducive to construction. When connecting, the bolt holes of the flange are inconvenient to be aligned or to avoid replacing the flange bolt holes of the equipment, etc., the use of this flat welding flange is very suitable.
3: The flat welding flange can save space and reduce weight in the process of use. The most important thing is to ensure that the head part will not leak. It has a very outstanding sealing function. The size of the compact flange is reduced because The diameter of the seal is reduced, which will reduce the cross-section of the sealing surface. In addition, the flange gasket has now been replaced by a sealing ring to ensure an outstanding matching of the flat welding flange seal facing the sealing surface.
But it also has some disadvantages:
Disadvantages of flat welding flange:
The main design disadvantage of flat welded flanges is that it cannot ensure no leakage. This is the lack of its planning: the connection is dynamic, and for example, thermal expansion and fluctuating cyclic loads will cause movement between the flange surfaces, which will affect the function of the flange, which will damage the integrity of the flange and eventually lead to leakage. It is impossible for any product to be without shortcomings, and only try to control the lack of products to the minimum. Therefore, the company tries its best to improve the functions of the products when producing flat-welded flanges to make them play the greatest role.